Journal
CARBON
Volume 49, Issue 6, Pages 2074-2078Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2011.01.042
Keywords
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Funding
- Balzan Foundation
- [22241030-2]
- Grants-in-Aid for Scientific Research [22241030] Funding Source: KAKEN
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Carbon nanohorn (CNH) aggregates are spherical with a diameter of similar to 80 nm. There are thousands of protruding nanohorns at the periphery of each CNH aggregate. However, the interior structure of CNH aggregates remains a question. In this work, we used focused ion beam (FIB) to cut CNH aggregates followed by electron microscopy observations. It was revealed that the interior consists of disordered single-layered graphene sheets with a lateral size of up to 10 nm and an interlayer distance of approximately 4-5 angstrom. The growth mechanism of CNH aggregates was discussed on the basis of this new finding. (C) 2011 Elsevier Ltd. All rights reserved.
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